Breast Cancer Home > Halaven and Breastfeeding

Because no research has been done on Halaven (eribulin) and breastfeeding, it is not known whether the medication passes through human breast milk. Due to the potential side effects that could occur in the nursing infant, the manufacturer recommends that women not receive the medication while breastfeeding.

Is Halaven Safe While Breastfeeding?

At this time, it is not known if Halaven™ (eribulin mesylate) passes through breast milk in humans. The manufacturer of the drug recommends that women not receive Halaven while breastfeeding. Therefore, if you are nursing, talk with your healthcare provider before receiving this medication.

More Information on Breastfeeding and Halaven

No research has been done to see if Halaven passes through breast milk in humans. The drug is known to pass through breast milk in rats. Because the potential risks to the breastfed infant are unknown, Halaven is probably not a good choice for a woman who wants to breastfeed.
If your healthcare provider decides that it is okay for you to use Halaven while nursing, make sure to watch for any changes or problems in your infant.

Talking With Your Healthcare Provider

You should discuss breastfeeding and Halaven with your healthcare provider. Each woman's situation is different, and you and your healthcare provider understand your situation best. After considering what you want and expect, as well as your current health situation, the two of you can make a shared decision that is right for you.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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